Re: [libvirt] [PATCH 7/7] kvmtool: Implementation for kvm tool driver

Basically, the drivers is implemented by using kvm tool binary currently, (see ./kvm help for more info). Current implementation supports define/undefine, start/destroy/, suspend/resume, connect to guest console via "virsh console", and balloon memory with with "virsh setmem" (using ./kvm balloon command). Also as it supports cgroup controllers "cpuacct", and "memory", so some other commands like "schedinfo", "memtune" can also work. Some other commands such as "domid", "domname", "dumpxml" ,"autostart", etc. are supported, as the driver is designed as a "stateful" driver, those APIs just need to talk with libvirtd simply. As Native Linux KVM Tool is designed for both non-root and root users, the driver is designed just like QEMU, supports two modes of the connection: kvmtool:///system kvmtool+unix:///system kvmtool:///session kvmtool+unix:///session An example of the domain XML (all the XMLs supported currently are listed): % virsh -c kvm:///system dumpxml kvm_test <domain type='kvmtool'> <name>kvm_test</name> <uuid>88bf38f1-b6ab-cfa6-ab53-4b4c0993d894</uuid> <memory>524288</memory> <currentMemory>524288</currentMemory> <vcpu>1</vcpu> <os> <type arch='x86_64'>hvm</type> <kernel>/boot/bzImage</kernel> <boot dev='hd'/> </os> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/bin/kvmtool</emulator> <disk type='file' device='disk'> <source file='/var/lib/libvirt/images/linux-0.2.img'/> <target dev='vda' bus='virtio'/> </disk> <filesystem type='mount' accessmode='passthrough'> <source dir='/tmp'/> <target dir='/mnt'/> </filesystem> <console type='pty'> <target type='serial' port='0'/> </console> <memballoon model='virtio'/> </devices> </domain> --- cfg.mk | 1 + daemon/Makefile.am | 4 + daemon/libvirtd.c | 7 + po/POTFILES.in | 2 + src/Makefile.am | 36 +- src/kvmtool/kvmtool_conf.c | 130 ++ src/kvmtool/kvmtool_conf.h | 66 + src/kvmtool/kvmtool_driver.c | 3079 ++++++++++++++++++++++++++++++++++++++++++ src/kvmtool/kvmtool_driver.h | 29 +